Bottle-grinding device.



L. J. CRECELIUS.

BOTTLE GRINDING DEVICE.

APPLICATION FILED APR.19, 1909.

Patented Apr. 11, 1911.

f Qiibmgg UNITED STATES PATENT mm LOUIS J, CRECELIUS, OFST. LOUIS,MISSOURI, ASSIGNOR OF ONE-HALF TO CHARLES A. 'iI-IOMPSON AND ONE-HALF TOERNEST C. JANSSEN, BOTH OF ST. LOUIS, MISSOURI.

BOTTLE-GRINDING DEVICE.

Specification of Letters Patent.

atntcd Apr. 11, 15H].

Application filed April 19v 1909. Serial No. 430,831.

To all IUILOTIL it 11111. 2; concern:

a citizen of the United States of America, residing at tit, Louis in theState of Missouri, have invciucd'ccrtain new and useful Improvements inBottle-Grinding Devices,

of which the following is a full, clear, and

exact description, reference being had to the accompanying drawings,forming part of this specification.

My invention relates to a device tor grindlug stopper seats in bottlesthat contain inii prisoned stoppers. conical in shape, and in connectionwith which it is necessary to provide a tapering seat within the mouthof the bottle neck in order that the stopper may fit perfectly tightwithin the .mouthoi. the bottle when it is moved to the seat providedfor it.

Figure 1 is a longitudinal or vertical section through my grindingdevice with a bottlo applied thereto and the device shown as it. appearsin grinding operation. Fig. 2 is in part a section and in part anelevation of the grinding tool and its support, the tool being shown asit appears when it. is entered into the mouth of the bottle. Fig. 3 is aperspective view of the mandrel. Fig. 4 is a 1 Brspeciivc view of thegrinding tool. Fig; is an enlarged cross section taken on line (5 -O,Fig. 1.

ln't-he accompanying drawings: (lQSlfI-' nates the neck of. a bottlewithin which, adjacent. to the mouth of the neck, is a stopper scat rib11 upon which the grinding tool of my device is adaptcd'to operate forthe purpose of providing such rib with a ground and perfectly acclp'ate.stopper seat that is of less diameter at. the outer edge of the rib thanthe diameter at the inner edge of the. rib in order that the imprisonedstopper 19. in the. bottle may. aftcr the rib is ground to provide forthe desired scat. fit snugly in the rib with such degree of precision asto produce a water and air tightv joint between these members,

llci'crring' now to my grinding device. (3

designates a part of a frame that serves as a support for a hollowspindle 8 that is revolubly mounted in the. frame and upon which is apulley 7 to which power may be applied for the operation or" thespindle.

2 designates a tn buiar grinding tool haymg a shank that 1s. seated in asocket in the spindle 8 and 13 secured to said spindlc in any suitablemanner in order that it will lie it known that I, LOLTIS J. (jnncnmcs. irotate with the spindle. the means shown in the drawings Fig. 1 forholding the shank of the tool to the spindle being: a set screw. Thegrinding tool is provided with a tapered oxpansible head, thecxpansibility of the head being acquired by the provision oflongitudinal slots 14 therein and the weakening of the tool at thejunction of its head and shank, as seen at 15. .The end of the head ofthe grinding tool is beveled. as most clearly seen in Fig. 1.

1 designates an expanding rod extending longitudinally through thespindle 8 and tho grinding tool 2. this expanding rod being: providedwith a tapering head thatv is oi grcatcst diameter near its end andwhich is operable in the cxpansiblc head of the grinding tool. The headof the expanding rod is provided with spurs 9 which scat in the slots 14in the grinding tool head and therefore serve to connect the expanding iod and the grinding" tool so that they will rotate together uponrotation being imparted to the spindle Bio which the grinding tool isattached. At the termination of the head of the expanding rod is anannular flange having a beveled lower or rear face that is adapted to bedrawn to tho beveled end of the head of the grinding tool for thepurpose of holding the sections of the expansible head of this tiool inaccurate adjustment to provide for too external faces of these sectionsall being present in a truc circle. The expanding rod is provided with aduct 17 extending longitudinally thcrcthrough and which is connected atits lower end.

llllOilQ'l'l the medium of a couplingv 13. to a pipe ili througrh whichthe grinding: or abrasive suhstancc that is to be used in the grindingoperation is conducted to the ertpandingrod to pass thercthrough intothe bottle that is to bc operated upon.

3. designates a draw spring surrounding the expanding rod 1 andpreferably partially seated in the spindle 8 against which one of itsends rests. The other end of the spring rests against a collar 4 fixedto the expanding: rod. 5 is a lever for imparting longitudinal movement.to the expanding rod 1. the lover being preferably pivoted to the frame6 and hearing against the collar 4.

l'nthe practical use of my grinding device. a bottle that is to heoperated upon is applied to the device, as seen inrl ig. 2,

